BACKGROUND There is no consensus on the exact parameters that define the LH surge for natural cycle frozen-thawed embryo transfers (NC-FET). Accurately determining the LH surge would affect the timing, and subsequently the success rates, of embryo transfer. Therefore, the aim of this study was to delineate the optimal levels and relationship for luteinizing hormone (LH) and estradiol in an effo...

Both synthetic and natural estrogens have been studied for their ability to induce renal carcinomas in castrated male hamsters after 9.0 months of treatment. Tumor foci were detected in frozen serial sections stained histochemically for estrase activity. Both diethylstilbestrol (DES) and 17 beta-estradiol had equal ability (100%) to induce renal tumors [approximately 20.5 +/- 3 (S.E.) tumor foc...

Both synthetic and natural estrogens have been studied for their ability to induce renal carcinomas in castrated male ham sters after 9.0 months of treatment. Tumor foci were detected in frozen serial sections stained histochemically for esterase activity. Both diethylstilbestrol (DES) and 17.^-estradiol had equal ability (100%) to induce renal tumors [~20.5 ±3 (S.E.) tumor foci] in these anim...

Both synthetic and natural estrogens have been studied for their ability to induce renal carcinomas in castrated male ham sters after 9.0 months of treatment. Tumor foci were detected in frozen serial sections stained histochemically for esterase activity. Both diethylstilbestrol (DES) and 17.^-estradiol had equal ability (100%) to induce renal tumors [~20.5 ±3 (S.E.) tumor foci] in these anim...

Three Candida albicans strains were tested in the presence of 17-beta-estradiol (10-6 M and 10-9 M) for increased growth and for enhanced survival during incubation at nonpermissive temperatures. All 3 test organisms showed increased growth in the presence of estradiol compared with estrogen-free controls. Likewise, all 3 strains, when treated with estradiol, survived incubation at 48 degrees C...

Cardiovascular disease is currently the leading cause of death among women in the United States. To investigate the effect of postmenopausal hormone therapy on atherogenesis, we studied 75 cholesterol-fed female rabbits for 19 wk. The rabbits were randomly assigned to five groups. Four groups underwent bilateral ovariectomy followed by treatment with either 17 beta-estradiol, 17 beta-estradiol ...

The effect of 17 beta-estradiol on calcitonin (CT) and calcitonin-gene-related peptide (CGRP) secretions in the murine CA-77 C cell line was studied after 1, 3, 5 and 6 d of treatment. The release of both CT and CGRP significantly increased 1, 3, 5 and 6 d after addition of 0.1 mumol/l estradiol alone to the culture medium. The C cell content of both peptides also increased after d of treatment...

Expression of concern for ‘Solar-driven photodegradation 17-β-estradiol and ciprofloxacin from waste water CO 2 conversion using sustainable coal-char/polymeric-g-C 3 N 4 /RGO metal-free nano-hybrids’ by Amit Kumar et al. , New J. Chem. 2017, 41 10208–10224, https://doi.org/10.1039/C7NJ01580A.

BACKGROUND The endometrium becomes receptive to the embryo after sequential actions of estrogen and progesterone. The purpose of this study was to examine the effects of estrogen and progesterone on endometrial hemodynamics and on secretion of vascular endothelial growth factor (VEGF) from endometrial epithelial cells (EEC). METHODS Six early postmenopausal women taking sequential estrogen an...